Calculating-machine.



E. E. PHINNEY.

CALCULATING MACHINE.

APPLICATION man JULY 22, 1915.

1522Q,54:5. Patented Mar. 27, 1917.

3. SHEETS-SHEET 1.

CALC

APPLICAT .111111-1 IIIIIIIIII 1 q/vi/bmeoo HINNEY.

NG MAC ION FILED JULY 15.

Patented Mar. 2 917.

3 SHEETS-S T 2. A

i yi E. E. PHINNEY.

CALCULATING MACHINE.

APPLICATION FlLED IULY22,1915- Patented Mar. 27, 1917.

3 SHEETS-SHEET 3- Sum mm 6d 4/1 6 624; 61]. 1 A7 STATES PATENT OFFICE.

EDGAR E. pm, 01' NEW YORK, n. 1.,1ssmno3 TO IONBOE caLcm'rnwo' nacnmncomm, or NEW man, it. Y., A conrom'rron or NEW YORK.

CYLLCULATING-YHAGHINE.

To all whom it may concem: Be it known that I, EDGAR E. PHINNEY,

a citizen of the United States, resident of New York, in the county ofNew York and State of New York, have made a certainf new and usefulInvention in Calculating Machines; and I declare the followin 'to be afull, clear, and exact description 0 .the same, such as will enableothers skilled in the art to which it ap rtains to make and use theinvention, re erence-being had to' shown in. the Reissue Patent No.13,841,

dated December 8,1914, having for its object to simplify the method ofprocedure in Th the performance of the different arithmetical problems,in that the crank handle is always'started and stopped at the sameplace. A further object is to provide continuously turned operatinggears, eliminating intermittently turning gears, with the consequentobjectionable clicking noise as the gears are engaged. A further objectis to reduce the gear ratio of the selectin or primary wheels to thedriving gears an the registering wheels, thus reducing the powerrequired to turn the crank handle and reducing the speed of theregistering dials or wheels and rendering them less liable 'to beoverthrown. A further object ,is to simplify the carrying mechanism,'eliminatin the oscillating members thereof. All 0 these objects areenabled to be accom lished to advantage practically by the use 0 eccentrio gears in the driving connection, as hereinafter stated. I

The invention consists in the novel construction and combinations ofparts, as here-, .inafter set forth.

In the accompanying drawings, illustrating the invention, Figure 1 1s avertical section'on the line 1-1, Fig. 2; Fig; 2 is a horizontal sectionon the line 2-2, Fig. 1; Fig.

3 is a section on the line 3+3, Fig. 2;

Fig. 4 is a detail face view of one half or section of one of the primaror selecting wheels; Fig. 5 isa detail si e view, of the same;: F i 6 isa detail face View of "the other hal or section of one of the primary orselecting'wheels, and Fig. 7 is'a detail side view of the same.

Speclflcationot lLetters Patent. Application iued m 1915. Serial no.4.1,:u.a.

Patented Mar. 27, 1 917.

tages stated, the crank handle is completely in one direction, orclockwise, for addition and multiplication, and completely in theopposite direction for subtraction and division, each time from the samestarting point. Y

The primary wheels 5 have each a toothed portion extending around aportion of the,

periphery of the wheel,- and are mounted u on their shaft with thetoothed portions 0 the wheels in substantial almement.

the keyboard and operate upon the registering dials as in the ReissuePatent 13,841,

referred to. l A

Carried by the shaft 73 are a plurality of collars, a, b, 0, d, e, f, g,h, and i, pro- .vided each with two radial thereto, with a carrying pawlor dog 7'. All of said arms m, m, fast ese primary wheels are controlledfrom "75 each radial arm being provided collars are fixed upon theshaft, and the carrying pawls are arranged in two oppositely pitchedspiral lines, each series or set of pawls extending about one-fourtharound the shaft, both together about onehalf around, and the two serisnearly intersecting or ending adjacent to each other. These carryingpawls are actuated by plungers seated in the-shaft of the intermediategears 12, and operate the registeringegials through "said gears, asfully descri the Reissue Patent 13,841, hereinbefore mentioned.

The crank handle being turned as stated,

the shaft of the carrying mechanism will i be turnedcom letelytherewith, by means of the train o spur gears 76,75, 74 and two membersof a sub train of gearslO, 11,, 12, the gear 11 being located upon ashort shaft 74 of and turning with the ear 74, and being the middle gearof said su train,

the gear 10' being fastupon the shaft of -the select-ing wheels and thegear 12 being fast upon the shaft of the carrying mechanism, whereby theshaft of the selecting wheels will be also turned constantl throughoutthe movement of the crank handle.

, The, gears '10, 11, and 12' eccentrically mounted upon their shafts,the selecting. wheels thereby turning at greater speed" during thesecond and third quarters of their revolution, or when in mesh with theintermediate gears, and at'less speed during the first and fourthquarters, when being moved into and away from operative position, orwhen the carrying mechanism is in operation, and the carrying mechanismturning at greater speed when in operation, or during the crank handlethe selecting wheel is rotated at high speed, in mesh with theintermediate gear, and during the last quarter revolution the selectingwheel is returnedslowly to initial position. So, also, during the firstquarter revolution of the crank handle, one series of carrying pawlswill be moved rapidly past the intermediate gears, the plungers of whichare not set for carrying; during the next half revolution of the crankhandle, or while the selecting gears are in operative engagement withthe intermediate gears to turn the same and set the plungers' thereoffor carrying, the carrying shaft and pawl's will be moved slowly and theother series of carrying pawls will bebrought around into "operativeposition, and during the last quarter revolution, or while the carryingis being performed, the selecting wheels will be out .of engagement withthe intermediate wheels, and said other series of carrying pawls will bemoved rapidly,

v in operative engagement with the plungers of the intermediate gears.

And inasmuch as the operation of each series of carrying pawls endsshort of the intersection of the two oppositely pitched spiral lines, areturn arm or arms 14 for the plunger relating to each intermediatewheel is enabled to be fixedly mounted upon the carrying shaft, midwaybetween the two series of carrying members, said arm being oppositelybeveled at 14', to return all of the plungers of either seriessimultaneously to normal position'in either direction ofrotation of thecarrying shaft. a

- The selecting wheels being rotated slowly while the carrying mechanismisbeing rotated rapidly, and vice versa, the strain upon the operatingshaft or crank handle is'nendered even and balanced at all times duringthe turning thereof, facilitating accuracy and ease of operation. Aneccentric gear being located upon the shaft of the carrying mechanism,as well as upon the shaft of the selecting wheels, the eccentricity andtheconsequent variation in speed is enabled o be made less than therewere an eccentric ear provided upon one of these shafts alone,

in train with an eccentric gear upon the shaft ofone of the larger" spurgears. WhatI'claim is: 7

'1. In a calculating machine, registering wheels, selecting-wheels andcarrying members actuating the registering wheels, an

operating shaft, and a continuous drive conmotion between said operatingshaft, said carrying members, and said selecting wheels,

involving means for obtaining variable speed.

2. In a calculating machine, registering 6 wheels, selecting wheels andcarrying members actuating the registering wheels, an operating shaft,and a continuous balanced variable speed drive connection between saidoperating shaft, said carrying members and said selecting wheels.

3, In a calculating machine, registering wheels, selecting wheels andcarrying members actuatingthe registering wheels, an operating shaft,and a continuous drive connection between said'operating shaft, saidcarrying members and said selecting wheels, involving eccentricallymounted gears for obtaining variable speed.

4. In a calculating machine, registering wheels, selecting wheels,carrying members, intermediate gears, an operating shaft, a continuousdrive connection between said operating shaft, saidcarrying members andsaid selecting wheels, involving a train of gears, a gear mountedeccentrically upon the shaft of the selecting wheels and a gearmounted'eccentrically' upon the shaft of one of the gears of said train,meshing with the firstnamed eccentrically mounted gear.

5. In a calculating machine, registering wheels, selecting wheels andcarrying members actuating the registering wheels, an operating shaft,and a continuous variable speed drive connection between said operatingshaft, said carrying members and said selecting wheels, involving atrain of gears, a gear mounted eccentrically upon the shaft of theselecting wheels, a gear mounted cocentrically uponthe shaft of thecarrying members and a gear mounted eccentrically said selecting wheelsand having invariably the same starting and stopping point.

7, In a calculating machine, registering ating shaft having'a continuousdrive connection with said carryin members and said selecting wheels,involving eccentrically' mountedl gears and having invariably the samestarting and stopping point.

8. In a calculating machine, registering wheels, selecting wheels, twospiral series of carrying members, intermediate wheels, reciprocatory'plungers operated by the registerinr wheels, said series extending inopposhaft having a ontinuous drive connection with said carrying membersand said selecting wheels and having invariably the same a starting andstopping point, and means for returning the plungers to normal position,

located midway. between the two series of carrying members.

9. In a calculating machine, registering wheels, selecting wheels, twospiral series of carrying members, intermediate wheels, said seriesincluding arms allof which arefixed to their shaft and pawls carried bysaidarms and operating in planes parallel to said shaft, both seriesextending in opposite directions around their shaftand ending adjacentto each other, and an operating shaft having a continuous driveconnection with said carrying members and said selecting wheels,involving eccent-ricallymounted gears and having invariably the samestarting and stopping point..

'10. In a calculating machine, registering wheels, selecting wheels, twoseries of carry-' ing members, intermediate wheels, reciprocatoryplungers operated by the registering wheels, an operating shaft, and acontinuous drive connection between said operating shaft, said'c'arryingmembers and said selecting wheels, arranged to, upon the first quarterrotation,"turn one series of carrying members out of the way, upon thenext half. rotation turn-the intermediate gears, through engagementtherewith of the selecting wheels, and upon the last quarter rotationturn the other series of carryin members into operative engagement wi th 'plungers, to perform the carrying. site directions around their shaftand, ending adjacent to' each other, an operating '11. In a calculatinmachine, registering ing members, intermediate wheels, reciprocatoryplungers operated by the registering wheels, an operating shaft, and acontinuous drive-connection between said operatin shaft, said carryingmembersv and sai selecting wheels, involving. eccentrically I mountegears arranged to, 'upon the first quarter'rotation, turn one series ofcarrying members out of the way, upon the next half rotation turn theintermediate gears, through engagement therewith of the selectingwheels, and upon the last quarter rotationturn the other series of carring-members into operative engagement with said plungers, to perform thecarrying.

- I In testimony whereof I alfix my signature,

in presence of two witnesses. EDGAR E. PHINNEY'.-=

Witnesses: I

' Cms. M. Oman, C. S. WILLIAMs.

said I

